| PERNICIOUS | Having a harmful effect to roughly ruin copies (10) |
| INSIDIOUS | Slowly having a harmful effect (9) |
| LIGHTNING | Striker having a harmful effect, ignoring leader about Nationalist (9) |
| TANTAMOUNT | Equivalent in effect (to) (10) |
| TOXICDOSE | Amount needed to produce a harmful effect, in medicine |
| CONSPIRACY | Secret plan to carry out a harmful or illegal act (10) |
| STRUCKHOME | Had the desired effect to beat The House (6,4) |
| WALTDISNEY | First person to add music and sound effects to animated cartoons (4,6) |
| ERODES | Has a harmful effect on royal poetry (6) |
| RADIOACTIVITY | What broadcasters indulge in can have a harmful effect on health (13) |
| MARS | Has a harmful effect on the planet (4) |
| BUG | A word for an object of dread originally, later a creepy-crawly or minibeast; a harmful micro-organism or viral disease; a gremlin in a computer system; or, a miniature microphone, hidden for secret e |
| EXPOSURE | Word for a lack of shelter from the weather; the harmful effects of extreme cold; aspect, with regard to climate, influence, sunlight etc; the revelation of a secret; or, publicity (8) |
| MALWARE | A computer program designed to have undesirable or harmful effects (7) |
| DAMAGE | ____ limitation, trying to reduce the harmful effects of a mistake (6) |
| AUCKLAND | Home to roughly a third of all New Zealanders |
| ORCA | Sea predator that can grow to roughly the size of a school bus |
| PARSEC | Unit equal to roughly three and a quarter light years |
| DOGPOUNDS | Units of weight equivalent to roughly seven times that of a human? |
| INSIDIOUSNESS | Gradual change with harmful effect |
